A:
Positive:
1 x 25156677 x 35938111 x 22869737 x 6799177 x 32671259 x 9713407 x 6181883 x 2849
Negative:
-1 x -2515667-7 x -359381-11 x -228697-37 x -67991-77 x -32671-259 x -9713-407 x -6181-883 x -2849
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 2,515,667, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 2,515,667 | |
| -1 | -2,515,667 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,515,667.
Example:
1 x 2,515,667 = 2,515,667
and
-1 x -2,515,667 = 2,515,667
Notice both answers equal 2,515,667
With that explanation out of the way, let's continue. Next, we take the number 2,515,667 and divide it by 2:
2,515,667 ÷ 2 = 1,257,833.5
If the quotient is a whole number, then 2 and 1,257,833.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 2,515,667 | |
| -1 | -2,515,667 |
Now, we try dividing 2,515,667 by 3:
2,515,667 ÷ 3 = 838,555.6667
If the quotient is a whole number, then 3 and 838,555.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 2,515,667 | |
| -1 | -2,515,667 |
Let's try dividing by 4:
2,515,667 ÷ 4 = 628,916.75
If the quotient is a whole number, then 4 and 628,916.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 2,515,667 | |
| -1 | 2,515,667 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 37 | 77 | 259 | 407 | 883 | 2,849 | 6,181 | 9,713 | 32,671 | 67,991 | 228,697 | 359,381 | 2,515,667 |
| -1 | -7 | -11 | -37 | -77 | -259 | -407 | -883 | -2,849 | -6,181 | -9,713 | -32,671 | -67,991 | -228,697 | -359,381 | -2,515,667 |
Here are some more numbers to try:
Try the factor calculator